Number | Date | Country | Kind |
---|---|---|---|
2-85403 | Mar 1990 | JPX | |
2-141939 | May 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2644779 | Manning | Jul 1953 | |
2687363 | Manning | Aug 1954 | |
2750317 | Manning | Jun 1956 | |
3043738 | Demeter et al. | Jul 1962 | |
3126580 | Paschke | Mar 1964 | |
3142599 | Chavannes | Jul 1964 | |
3165432 | Plaskett | Jan 1965 | |
3190781 | Metz, Jr. | Jun 1965 | |
3399096 | Ranger | Aug 1968 | |
3418198 | Einstman | Dec 1968 | |
3421964 | Arbit | Jan 1969 | |
3470055 | Wade | Sep 1969 | |
3533834 | Marzocchi | Oct 1970 | |
3837973 | Asakura et al. | Sep 1974 | |
3959059 | Alexander et al. | May 1976 | |
3999928 | Asakura et al. | Dec 1976 | |
4123211 | Rudloff | Oct 1978 | |
4288475 | Meeker | Sep 1981 | |
4474845 | Hagermann et al. | Oct 1984 | |
4767643 | Westervelt et al. | Aug 1988 | |
4956140 | Rolles et al. | Sep 1990 | |
5028361 | Fujimoto | Jul 1991 |
Number | Date | Country |
---|---|---|
0209713 | Jan 1987 | EPX |
3840704 | Jul 1989 | DEX |
2443325 | Jul 1979 | FRX |
55-77525 | Jun 1980 | JPX |
61-279518 | Dec 1986 | JPX |
1100485 | Feb 1965 | GBX |
Entry |
---|
Patent Abstracts of Japan, vol. 12, No. 416 (M-759)(3263) Nov. 4, 1988 & JP-A-63 153 107 (Toshiba Chem Corp.) Jun. 25, 1988. |